145993728

Names of 145993728

• Cardinal: 145993728 can be written as One hundred forty-five million, nine hundred ninety-three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.45993728 × 10⁸

Factors of 145993728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 114

Divisors of 145993728

• Number of divisors d(n): 78
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 109 128 192 218 256 327 384 436 512 654 768 872 1024 1308 1536 1744 2048 2616 3072 3488 4096 5232 6144 6976 10464 11881 12288 13952 20928 23762 27904 35643 41856 47524 55808 71286 83712 95048 111616 142572 167424 190096 223232 285144 334848 380192 446464 570288 669696 760384 1140576 1339392 1520768 2281152 3041536 4562304 6083072 9124608 12166144 18249216 24332288 36498432 48664576 72996864 145993728
• Sum of all divisors σ(n): 392873124
• Sum of proper divisors (its aliquot sum) s(n): 246879396
• 145993728 is an abundant number, because the sum of its proper divisors (246879396) is greater than itself. Its abundance is 100885668

Bases of 145993728

• Binary: 1000101100111011000000000000₂
• Hexadecimal: 0x8B3B000
• Base-36: 2EX5HC

Squares and roots of 145993728

• 145993728 squared (145993728²) is 21314168615337984
• 145993728 cubed (145993728³) is 3111734935373790264164352
• The square root of 145993728 is 12082.7864336005
• The cube root of 145993728 is 526.5562025089

Scales and comparisons

• 145,993,728 seconds is equal to 4 years, 33 weeks, 2 days, 17 hours, 48 minutes, 48 seconds.
• To count from 1 to 145,993,728 would take you about six years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 145993728 cubic inches would be around 43.9 feet tall.

Recreational maths with 145993728

• 145993728 backwards is 827399541
• 145993728 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 145993728's digits is 48
• More coming soon!